package com.yh.core.shiro;

import com.yh.core.shiro.jwt.JwtToken;
import com.yh.core.shiro.jwt.JwtUtil;
import lombok.extern.slf4j.Slf4j;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.SimpleAuthenticationInfo;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.tomcat.websocket.AuthenticationException;

@Slf4j
public class MyRealm extends AuthorizingRealm {


    /**
     * 必须重写此方法，不然Shiro会报错
     */
    @Override
    public boolean supports(AuthenticationToken token) {
        return token instanceof JwtToken;
    }

    /**
     * 只有当需要检测用户权限的时候才会调用此方法，例如checkRole,checkPermission之类的
     */
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        String username = JwtUtil.getUsername(principals.toString());

        log.info("检测权限");
        SimpleAuthorizationInfo simpleAuthorizationInfo = new SimpleAuthorizationInfo();
//        simpleAuthorizationInfo.addStringPermission("user:getAccountById");
        return simpleAuthorizationInfo;
    }

    /**
     * 认证（登录）
     * 默认使用此方法进行用户名正确与否验证，错误抛出异常即可。
     */
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken auth) {

      /*  try {

            String token = (String) auth.getCredentials();
            // 解密获得username，用于和数据库进行对比
            String username = JwtUtil.getUsername(token);
            log.info("{}",username);
            if (username == null) {

                throw new AuthenticationException("token无效");

            }
            User userBean = new User().setName("123").setPassword("123");
            if (userBean == null) {
                throw new AuthenticationException("用户不存在!");
            }

            if (!JwtUtil.verify(token, username, userBean.getPassword())) {
                throw new AuthenticationException("用户名或密码错误");
            }
//            log.info("AuthenticationInfo通过{}", username);
            return new SimpleAuthenticationInfo(token, token, "myRealm");
        } catch (AuthenticationException e) {
            e.printStackTrace();
        }*/
        log.info("Shiro认证登录");
        return new SimpleAuthenticationInfo("123","123","myRealm");
    }

}